ADUM6404CRIZ

Overview

The ADUM6404CRIZ is a quad-channel digital isolator from Analog Devices, featuring isoPower technology that integrates an isolated DC-to-DC converter within the IC package. It provides four unidirectional data channels with a maximum data rate of 25 Mb/s and a propagation delay of 60 ns. The device offers a high insulation voltage of 5000 Vrms and a common-mode transient immunity of 25 kV/µs. Operating on a single supply voltage between 3 V and 5.5 V, it is housed in a 16-pin SOIC package and supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Integrates an isolated DC-to-DC converter for power delivery across the isolation barrier
• Provides magnetic coupling-based isolation for four independent data channels
• Supports high common-mode transient immunity for reliable signal transmission
• Features unidirectional data flow with low propagation delay

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced electrical safety barriers
• Power electronics control circuits with high voltage noise environments
• Instrumentation interfaces demanding high-speed digital isolation

Procurement Notes

Verify the specific suffix 'CRIZ' against the manufacturer's current datasheet revision to ensure compatibility with required packaging and temperature grades. Confirm that the integrated DC-DC converter requirements match your system's power budget and layout constraints. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when both high-voltage isolation and integrated power conversion are required in a compact form factor. Compare the 5000 Vrms insulation rating against system safety standards. Evaluate the 25 Mb/s data rate against signal timing requirements. Consider the 16-SOIC package dimensions for PCB space limitations and thermal management needs relative to other isolator families.

Part Context

This part belongs to the ADuM640x series of quad-channel digital isolators. It utilizes capacitive and magnetic coupling technologies combined with on-chip power conversion. The series is designed for applications requiring robust isolation between low-voltage control logic and high-voltage power stages, offering a solution that reduces external component count compared to discrete isolator and converter combinations.

Replacement Considerations

The ADUM6404CRWZ is a documented variant within the same family, differing primarily in packaging type (tube vs. reel) and potentially insulation ratings. Verify exact electrical specifications and package dimensions before substitution.